CN101676765A - Electronic device, liquid crystal varifocus lens and method of producing liquid crystal varifocus lens - Google Patents
Electronic device, liquid crystal varifocus lens and method of producing liquid crystal varifocus lens Download PDFInfo
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- CN101676765A CN101676765A CN200810216287A CN200810216287A CN101676765A CN 101676765 A CN101676765 A CN 101676765A CN 200810216287 A CN200810216287 A CN 200810216287A CN 200810216287 A CN200810216287 A CN 200810216287A CN 101676765 A CN101676765 A CN 101676765A
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Abstract
The invention discloses a liquid crystal varifocus lens comprising a first substrate and a second substrate which are arranged in parallel. The first substrate is provided with a first electrode and afirst orientation layer; the second substrate is provided with a second electrode and a second orientation layer; the first electrode and/or the second electrode are/is arranged on the opposite surfaces of the first substrate and the second substrate; at least one sealed concave hollow cavity is formed between the first substrate and the second substrate; and liquid crystal is held in the sealedconcave hollow cavity. Because the first electrode and/or the second electrode are/is arranged on the opposite surfaces of the first substrate and the second substrate, and at least one of the electrodes is close to a liquid crystal layer and keeps a short distance with the liquid crystal layer, the lower the driving voltage used for generating same field intensity, the more obvious the focusing effect. The liquid crystal layer is in the shape of a curved-surface lens, thus the focusing and the imaging effect can be better realized by adding only a little voltage.
Description
[technical field]
The invention belongs to the lens field, relate in particular to a kind of liquid-crystal zoom lens, electronic installation and method for making.
[background technology]
At present, lens are a kind of basic optical device, are seen everywhere in optical instrument and equipment.Along with the development of optical technology, more and more higher to the requirement of lens, one of them requirement is the focal length continuous variable, and another is a zoom on a large scale.In the existing lens arrangement,, all can make the optical system of lens arrangement become huge and complicated if want to satisfy aforementioned requirement.Because of existing zoom lens all are optical lens basically, structure all is the combination of several optical lenses, and its volume is big.For example, camera generally is to realize focusing by the spacing that miniature motor is regulated lens group, and the camera that has directly is that armrest is focused; And the focus adjustment scope of optical lens also is smaller.In existing technology, the focusing point mechanism that changes as the focal length that makes optical system or focus, thus extensively adopt the mode that lens is moved focus or focus.But in this mode, because need lens actuating device, so exist baroque shortcoming, lens actuating device need consume more electric power simultaneously.
Therefore,, occurred a kind of liquid-crystal zoom lens at present, proposed to make the refractive index of liquid-crystal zoom lens to change as the focus adjusting mechanism that does not need lens actuating device, thus the mode of focusing.But the required driving voltage of existing liquid-crystal zoom lens is bigger, and the focusing phenomenon of lens is not obvious, is difficult for being embodied as picture.
[summary of the invention]
Technical matters to be solved by this invention provides a kind of liquid-crystal zoom lens, and it is bigger to be intended to solve the required driving voltage of liquid-crystal zoom lens in the prior art, and the focusing phenomenon of lens is not obvious, is difficult for being embodied as the problem of picture.
The present invention is achieved by the following technical solutions:
A kind of liquid-crystal zoom lens, wherein, described liquid-crystal zoom lens comprises, first substrate and second substrate that opposing parallel is provided with, on first substrate, have first electrode and first oriented layer, on second substrate, have second electrode and second oriented layer, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, form the re-entrant cavity of at least one sealing between described first substrate and second substrate, accommodate liquid crystal in the re-entrant cavity of described sealing.
In the present invention, in first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, described at least one electrode is closely close with liquid crystal layer, electrode and liquid crystal layer distance are less, driving voltage required when therefore producing identical field intensity is low more, and focusing effect is obvious; Simultaneously, by between described first substrate and second substrate, forming the re-entrant cavity of at least one sealing, accommodate liquid crystal in the described sealing re-entrant cavity, thereby the liquid crystal layer in the re-entrant cavity itself presents a toroidal lens shape, and voltage just can be realized focusing on and imaging effect better a little.During concrete work, directly between first electrode and second electrode, apply voltage, thereby between first substrate and second substrate, form an electric field, electric field makes the liquid crystal molecule polarization and then deflects, change the arrangement and the refractive index of liquid crystal molecule, the Gradient distribution that its refractive index is centrosymmetric, thus realize focusing on and imaging effect.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is first kind of liquid-crystal zoom lens cross-sectional view that the embodiment of the invention provides;
Fig. 2 is the focal length of first kind of liquid-crystal zoom lens providing of the embodiment of the invention and the synoptic diagram that concerns of control voltage;
Fig. 3 is second kind of liquid-crystal zoom lens cross-sectional view that the embodiment of the invention provides;
Fig. 4 is the third liquid-crystal zoom lens cross-sectional view that the embodiment of the invention provides;
Fig. 5 is the 4th kind of liquid-crystal zoom lens cross-sectional view that the embodiment of the invention provides;
Fig. 6 is the liquid-crystal zoom lens method for making schematic flow sheet that the embodiment of the invention provides;
[embodiment]
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present invention, a kind of liquid-crystal zoom lens is provided, wherein, described liquid-crystal zoom lens comprises, first substrate and second substrate that opposing parallel is provided with, on first substrate, have first electrode and first oriented layer, on second substrate, have second electrode and second oriented layer, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, form the re-entrant cavity of at least one sealing between described first substrate and second substrate, accommodate liquid crystal in the re-entrant cavity of described sealing.
The shape of the re-entrant cavity of at least one sealing that forms between described first substrate and second substrate can be sphere or elliposoidal, and the height of re-entrant cavity is 80-200 μ m, and diameter is 3-12mm.
Described first substrate and second substrate can be base material commonly used in the liquid-crystal zoom lens, as long as satisfy that its light transmission is good, good insulating, form electrode and have certain rigidity at substrate surface easily.For example can be in glass, polyethylene terephthalate (PET), polycarbonate (PC) and the polymethylmethacrylate (PMMA) etc. one or more.Wherein, the thickness of described first substrate and second substrate is 0.10-0.50mm, is preferably 0.20-0.40mm; The transmitance of described first substrate and second substrate is 84-94%, is preferably 86-91%; According to the preferred embodiment, can further improve the focusing effect of this liquid-crystal zoom lens.
Described first electrode and second electrode are transparency conducting layer, and its thickness can be for the 10-100 nanometer, be preferably the 10-60 nanometer, and described transparency conducting layer is preferably the transparent conductive metal oxide skin(coating).Described transparent conductive metal oxide can be the various transparent conductive metal oxides that can be used to conduct electricity, for example can mix in antimony, zinc paste and the doped zinc oxide aluminium one or more for tin indium oxide, tin oxide, tin oxide, be preferably tin indium oxide (Indium Tin Oxides, ITO).Wherein, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, promptly when first electrode was formed on first substrate face relative with second substrate, second electrode can be formed on any one surface of second substrate; To be formed on first substrate face relative with second substrate enterprising when second electrode, and first electrode can be formed on any one surface of first substrate.
Described first oriented layer and second oriented layer can adopt oriented material commonly used, polyimide (Polyimide for example, PI), when described first electrode and second electrode were formed on the inside surface of first substrate and second substrate, described first oriented layer and second oriented layer were formed on the surface of first electrode and second electrode; When described first electrode and second electrode were formed on the outside surface of first substrate and second substrate, described first oriented layer and second oriented layer were formed directly into the inside surface of first substrate and second substrate.
With reference to shown in Figure 1, the first kind of liquid-crystal zoom lens cross-sectional view that provides for the embodiment of the invention.Described first kind of liquid-crystal zoom lens comprises, first glass substrate 11 and second glass substrate 12 that opposing parallel is provided with, on the inside surface of first glass substrate 11, has an ITO electrode 13, the first oriented layer (not shown) is formed on the surface of an ITO electrode 13, the 2nd ITO electrode 14, the second oriented layer (not shown) that have a bending on second glass substrate 12 are formed on the surface of the 2nd ITO electrode 14.Wherein, the inside surface of second glass substrate 12 is a concave surface, and described the 2nd ITO electrode 14 and second oriented layer are formed on the described concave surface.After described first glass substrate 11 and 12 applyings of second glass substrate, form the re-entrant cavity of a sealing between described first glass substrate 11 and second glass substrate 12, accommodate liquid crystal 15 in the re-entrant cavity of described sealing.As a kind of embodiment, the height H of described re-entrant cavity=120 μ m, diameter D is 8mm, and the thickness of described first glass substrate is 0.50mm, and the thickness of second substrate is 0.50mm.During making, after an ITO electrode 13 and the 2nd ITO electrode 14 surface applied polyimide alignment layers, to the oriented layer folk prescription to friction, and the frictional direction of the oriented layer on first glass substrate 11 and second glass substrate 12 is antiparallel, then in the concave surface of second glass substrate 12, fill nematic liquid crystal, described liquid crystal forms the liquid crystal layer of uneven thickness one, at last first glass substrate 11 and second glass substrate 12 is fit together.
The first kind of liquid-crystal zoom lens that adopts the foregoing description to provide, under the effect of difference control voltage, with charge-coupled image sensor (Charge Coupled Device, CCD) parallel beam of Jie Shouing passes first kind of liquid-crystal zoom lens of the embodiment of the invention, wherein, liquid-crystal zoom lens and charge-coupled image sensor are 20cm such as the distance between the camera, and used light source is a helium-neon laser, the laser beam vertical incidence.Therefrom as can be seen, the area of hot spot (promptly focusing on) applies the rising of voltage along with lens and dwindles, and has demonstrated the good focusing phenomenon.
With reference to shown in Figure 2, the focal length of the first kind of liquid-crystal zoom lens that provides for the embodiment of the invention and the synoptic diagram that concerns of control voltage, described voltage is the voltage that is applied between first electrode and second electrode.As can be seen from Figure 2, voltage is between 0-20V the time, and along with the rising of control voltage, the focal length of this liquid-crystal zoom lens is diminishing, and voltage is between 20-40V the time, and when control voltage continued to increase, it is big that the focal length of lens can become again.Therefore, by the voltage swing between the control two substrates, can realize the focusing and the Zoom effect of this liquid-crystal zoom lens.
With reference to shown in Figure 3, the second kind of liquid-crystal zoom lens cross-sectional view that provides for the embodiment of the invention, the structural similarity of present embodiment and described first kind of liquid-crystal zoom lens, identical place repeats no more, difference is: described the 2nd ITO electrode 34 is arranged on the outside surface of second glass substrate 32, form a plane electrode, described second oriented layer is formed directly into the inside surface of second glass substrate 32.Certainly, a described ITO electrode 33 also can be arranged on the outside surface of first glass substrate 31, and described first oriented layer is formed directly on the inside surface of first glass substrate 31.Simultaneously, the height H of described re-entrant cavity=80 μ m, diameter D is 3mm.
With reference to shown in Figure 4, the third liquid-crystal zoom lens cross-sectional view that provides for the embodiment of the invention.The liquid-crystal zoom lens that present embodiment provides comprises, first glass substrate 41 and second glass substrate 42 that opposing parallel is provided with, on the inside surface of first glass substrate 41, has an ITO electrode 43, the first oriented layer (not shown) is formed on the surface of an ITO electrode 43, on the inside surface of second glass substrate 42, have the 2nd ITO electrode 44, form a plane electrode.Wherein, on the surface of described the 2nd ITO electrode 44, also be provided with a concave surface (cross-section structure is a concave surface) layer 46, described concave surface layer 46 can adopt the material identical with the refractive index of second glass substrate 42 to constitute, and for example can select the PET material for use; Also can be to fill by the close polymeric material of the refractive index of other and second glass substrate 42 to constitute, for example can select polyacrylamide (Polyacrylamide, PAM) polymeric material for use.The second oriented layer (not shown) is formed on the inside surface of concave surface layer 46, after described first glass substrate 41 and 42 applyings of second glass substrate, form the re-entrant cavity of a sealing between the concave surface layer 46 on described first glass substrate 41 and second glass substrate, 42 inside surfaces, accommodate liquid crystal 45 in the re-entrant cavity of described sealing.
In the liquid-crystal zoom lens structure that aforementioned three kinds of embodiment provide, the re-entrant cavity of described sealing is to be formed by second glass substrate with concave surface or the concave surface layer that forms on second glass substrate and a packoff, and described packoff all is first glass substrate with concave surface.Certainly, also can adopt other packoff, such as can second glass substrate with concave surface or on the spill layer that second glass substrate forms sealing one deck diaphragm seal earlier, and then fit with first glass substrate, form the re-entrant cavity of described sealing; Aforesaid diaphragm seal can be PET, PC and PMMA.
With reference to shown in Figure 5, the 4th kind of liquid-crystal zoom lens cross-sectional view that provides for the embodiment of the invention.Described the 4th kind of liquid-crystal zoom lens comprises, first glass substrate 51 and second glass substrate 52 that opposing parallel is provided with, an ITO electrode 53 that on the inside surface of first glass substrate 51, has a bending, the first oriented layer (not shown) is formed on the surface of an ITO electrode 53, the 2nd ITO electrode 54, the second oriented layer (not shown) that have a bending on second glass substrate 52 are formed on the surface of the 2nd ITO electrode 54.Wherein, first glass substrate 51 and second glass substrate, 52 interior surface opposing all are a concave surface, to form first concave surface and second concave surface respectively, a described ITO electrode 53 and second oriented layer and the 2nd ITO electrode 54 and second oriented layer are respectively formed on described first concave surface and second concave surface.Especially, liquid crystal molecule leaks when preventing that first glass substrate 51 and second glass substrate 52 from fitting, between described first glass substrate 51 and second glass substrate 52, also be provided with a packoff, described packoff can be selected transparent nonconducting material for use, can be glass substrate, PET, PC and PMMA etc. for example, be preferably transparent non-conductive glass substrate 50; The thickness of described transparent non-conductive glass substrate 50 is 0.10-0.40mm, is preferably 0.20-0.30mm.During combination, can fit to first glass substrate 51 and transparent non-conductive glass substrate 50 together earlier, and then fit with second glass substrate 52; Perhaps, can fit to second glass substrate 52 and transparent non-conductive glass substrate 50 together earlier, and then fit with first glass substrate 51.In the applying process, the coating squence of these three substrates does not have strict restriction, and final purpose is to fit to together and can not allow liquid crystal molecule leak out.After described first glass substrate 51, second glass substrate 52 and transparent non-conductive glass substrate 50 are finished applying, described first glass substrate 51 and second glass substrate 52 form first re-entrant cavity and second re-entrant cavity of a sealing respectively and between the transparent non-conductive glass substrate 50, accommodate liquid crystal 55 and liquid crystal 56 in first re-entrant cavity of described sealing and second re-entrant cavity respectively.As a kind of embodiment, the height H 1 of described first re-entrant cavity and second re-entrant cavity and H2 are 200 μ m, and diameter D is 12mm, and the thickness of described first glass substrate is 0.30mm, and the thickness of second substrate is 0.30mm.
During making, after an ITO electrode 53 and the 2nd ITO electrode 54 surface applied polyimide alignment layers, to the oriented layer folk prescription to friction, and the frictional direction of the oriented layer of first glass substrate 51 and second glass substrate 52 is antiparallel, then in the concave surface of first glass substrate 51 and second glass substrate 52, fill nematic liquid crystal, described liquid crystal forms the liquid crystal layer of uneven thickness one, at last first glass substrate 51 and second glass substrate 52 is fitted with transparent non-conductive glass substrate 50.
In the present embodiment, a described ITO electrode 53 is arranged on the inside surface of second glass substrate 51, described the 2nd ITO electrode 54 is arranged on the inside surface of second glass substrate 52, and described first oriented layer and second oriented layer are respectively formed on the surface of an ITO electrode 53 and the 2nd ITO electrode 54.In like manner, a described ITO electrode 53 and the 2nd ITO electrode 54 also can be arranged on the outside surface of first glass substrate 51 and second glass substrate 52, and described first oriented layer and second oriented layer are formed directly on the inside surface of first glass substrate 51 and second glass substrate 52.
In the present invention, in first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, described at least one electrode is closely close with liquid crystal layer, electrode and liquid crystal layer distance are less, driving voltage required when therefore producing identical field intensity is low more, and focusing effect is obvious; Simultaneously, by between described first substrate and second substrate, forming the re-entrant cavity of at least one sealing, accommodate liquid crystal in the described sealing re-entrant cavity, thereby the liquid crystal layer in the re-entrant cavity itself presents a toroidal lens shape, and voltage just can be realized focusing on and imaging effect better a little.During concrete work, directly between first electrode and second electrode, apply voltage, thereby between first substrate and second substrate, form an electric field, electric field makes the liquid crystal molecule polarization and then deflects, change the arrangement and the refractive index of liquid crystal molecule, the Gradient distribution that its refractive index is centrosymmetric, thus realize focusing on and imaging effect.
Further, the liquid-crystal zoom lens structure among the present invention does not need lens actuating device, and simple in structure, volume is little, and control voltage is low and adjustable, and focusing effect is obvious.
Further, described two vertical electric fields that parallel pole produces up and down are through behind the described concave surface, owing to distance different the make electric field intensity differences of second electrode to first electrode, thereby make the deflection effect difference of liquid crystal molecule, and then produce focusing effect.Simultaneously, because the liquid crystal layer itself in the re-entrant cavity is exactly the heterogeneity shape of toroidal lens, the easier deflection of liquid crystal molecule is so the present invention more helps focusing on and imaging.
The liquid-crystal zoom lens that the embodiment of the invention provides can also be widely used in mobile phone cam, digital camera camera lens and the first-class electronic installation of monitoring camera.In the described electronic installation, comprised above-mentioned liquid-crystal zoom lens, wherein, described liquid-crystal zoom lens comprises, first substrate and second substrate that opposing parallel is provided with, on first substrate, have first electrode and first oriented layer, on second substrate, have second electrode and second oriented layer, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, form the re-entrant cavity of at least one sealing between described first substrate and second substrate, accommodate liquid crystal in the re-entrant cavity of described sealing.
In order to deepen the understanding of the present invention, below will schematically illustrate its method for making.
A kind of method for making of liquid-crystal zoom lens may further comprise the steps:
At first, second substrate that will have first substrate of first electrode and have second electrode be arranged in parallel, and wherein, at least one in described first electrode and second electrode is arranged on first substrate face relative with second substrate;
Then, on first substrate and second substrate, form first oriented layer and second oriented layer respectively, wherein, when described first electrode and second electrode are formed on the inside surface of first substrate and second substrate, described first oriented layer and second oriented layer are formed on described first electrode and second electrode surface, when described first electrode or second electrode were formed on the outside surface of first substrate or second substrate, described first oriented layer or second oriented layer directly were respectively formed at the inside surface of first substrate or second substrate; Further, after formation first oriented layer and second oriented layer, also should carry out friction treatment to first oriented layer and second oriented layer;
Then, at first substrate or/and form at least one concave surface on second substrate, wherein, described concave surface can be that first substrate is or/and the concave surface that second substrate itself has also can be at first substrate or/and increase a concave surface layer that is provided with on second substrate;
Then, in the groove that concave surface forms, pour into liquid crystal;
At last, first substrate and second substrate are fitted.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of liquid-crystal zoom lens, it is characterized in that, described liquid-crystal zoom lens comprises, first substrate and second substrate that opposing parallel is provided with, on first substrate, have first electrode and first oriented layer, on second substrate, have second electrode and second oriented layer, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, form the re-entrant cavity of at least one sealing between described first substrate and second substrate, accommodate liquid crystal in the re-entrant cavity of described sealing.
2, liquid-crystal zoom lens as claimed in claim 1 is characterized in that, the shape of the re-entrant cavity of at least one sealing that forms between described first substrate and second substrate can be sphere or elliposoidal, highly is 80-200 μ m, and diameter is 3-12mm.
3, liquid-crystal zoom lens as claimed in claim 2, it is characterized in that, the surface of any one substrate in described first substrate and second substrate is a concave surface, a described substrate and re-entrant cavity that seals a sealing of packoff formation of concave surface with concave surface.
4, liquid-crystal zoom lens as claimed in claim 2, it is characterized in that, a concave surface layer is arranged on the surface of any one substrate in described first substrate and second substrate, a described substrate and re-entrant cavity that seals a sealing of packoff formation of concave surface with concave surface layer.
As claim 3 or 4 described liquid-crystal zoom lens, it is characterized in that 5, described packoff does not have the substrate of concave surface for another.
As claim 3 or 4 described liquid-crystal zoom lens, it is characterized in that 6, described packoff is one deck diaphragm seal.
7, liquid-crystal zoom lens as claimed in claim 2, it is characterized in that, described first substrate and the second substrate facing surfaces are respectively a concave surface, to form first concave surface and second concave surface, also be provided with the packoff of sealing first concave surface and second concave surface between described first substrate and second substrate, described first substrate with first concave surface, second substrate with second concave surface form first re-entrant cavity and second re-entrant cavity of a sealing respectively with packoff.
8, liquid-crystal zoom lens as claimed in claim 7 is characterized in that, described packoff is a glass substrate.
9, a kind of electronic installation, comprise a liquid-crystal zoom lens, it is characterized in that, described liquid-crystal zoom lens comprises, first substrate and second substrate that opposing parallel is provided with, on first substrate, have first electrode and first oriented layer, on second substrate, have second electrode and second oriented layer, in described first electrode and second electrode at least one is arranged on first substrate face relative with second substrate, form the re-entrant cavity of at least one sealing between described first substrate and second substrate, accommodate liquid crystal in the re-entrant cavity of described sealing.
10, a kind of method for making of liquid-crystal zoom lens is characterized in that, may further comprise the steps:
First substrate that will have first electrode be arranged in parallel with second substrate with second electrode;
On first substrate and second substrate, form first oriented layer and second oriented layer respectively;
On first substrate and second substrate, form at least one concave surface;
In the groove that concave surface forms, pour into liquid crystal;
First substrate and second substrate are fitted.
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| CN200810216287A CN101676765A (en) | 2008-09-20 | 2008-09-20 | Electronic device, liquid crystal varifocus lens and method of producing liquid crystal varifocus lens |
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| CN200810216287A CN101676765A (en) | 2008-09-20 | 2008-09-20 | Electronic device, liquid crystal varifocus lens and method of producing liquid crystal varifocus lens |
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| CN102650790A (en) * | 2011-07-25 | 2012-08-29 | 京东方科技集团股份有限公司 | LCD (liquid crystal display) monitor applying liquid crystal lens structure |
| CN103547960A (en) * | 2011-12-16 | 2014-01-29 | 松下电器产业株式会社 | Control device for variable focus lenses, control method for variable focus lenses, and electronic glasses |
| CN108474116A (en) * | 2015-12-22 | 2018-08-31 | 因特格拉斯技术股份公司 | For the vacuum coating facility to lens coat layer |
| CN109990244A (en) * | 2019-04-15 | 2019-07-09 | 京东方科技集团股份有限公司 | Lighting device and driving method, car light |
| CN110596968A (en) * | 2019-08-29 | 2019-12-20 | 广东工业大学 | Variable-focus arc-shaped cylindrical cavity liquid crystal lens |
| CN110646977A (en) * | 2019-09-27 | 2020-01-03 | 京东方科技集团股份有限公司 | Quantum dot display panel and display device |
| CN110703513A (en) * | 2019-08-29 | 2020-01-17 | 广东工业大学 | Variable-focus liquid crystal lens with spherical cavity structure |
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| US8970797B2 (en) | 2011-07-25 | 2015-03-03 | Boe Technology Group Co., Ltd. | Liquid crystal display adopting structure of liquid crystal lens |
| WO2013013612A1 (en) * | 2011-07-25 | 2013-01-31 | 京东方科技集团股份有限公司 | Liquid crystal display applying liquid crystal lens structure |
| CN102650790A (en) * | 2011-07-25 | 2012-08-29 | 京东方科技集团股份有限公司 | LCD (liquid crystal display) monitor applying liquid crystal lens structure |
| CN102650790B (en) * | 2011-07-25 | 2015-01-07 | 京东方科技集团股份有限公司 | LCD (liquid crystal display) applied with liquid crystal lens structure |
| CN103547960B (en) * | 2011-12-16 | 2018-03-16 | 三井化学株式会社 | The control device and electronic glasses of zoom lens |
| US9541774B2 (en) | 2011-12-16 | 2017-01-10 | Mitsui Chemicals, Inc. | Control device for variable focus lenses, control method for variable focus lenses, and electronic glasses |
| CN103547960A (en) * | 2011-12-16 | 2014-01-29 | 松下电器产业株式会社 | Control device for variable focus lenses, control method for variable focus lenses, and electronic glasses |
| CN108474116A (en) * | 2015-12-22 | 2018-08-31 | 因特格拉斯技术股份公司 | For the vacuum coating facility to lens coat layer |
| CN109990244A (en) * | 2019-04-15 | 2019-07-09 | 京东方科技集团股份有限公司 | Lighting device and driving method, car light |
| CN109990244B (en) * | 2019-04-15 | 2021-04-23 | 京东方科技集团股份有限公司 | Lighting device, driving method and vehicle lamp |
| CN110596968A (en) * | 2019-08-29 | 2019-12-20 | 广东工业大学 | Variable-focus arc-shaped cylindrical cavity liquid crystal lens |
| CN110703513A (en) * | 2019-08-29 | 2020-01-17 | 广东工业大学 | Variable-focus liquid crystal lens with spherical cavity structure |
| CN110646977A (en) * | 2019-09-27 | 2020-01-03 | 京东方科技集团股份有限公司 | Quantum dot display panel and display device |
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